Officials at Toronto's Pearson International Airport are warning it won't be a normal travel day today due to fallout from yesterday's extensive delays and cancellations caused by freezing temperatures.

Thousands of people are still trying to re-book flights after the airport came to a near standstill yesterday morning, when freezing temperatures caused widespread delays for arriving passengers.

Passengers arriving Tuesday morning waited hours for their planes to reach the gate, then hours more to claim their luggage. Some left the airport without their bags while unclaimed luggage covered the floor in some arrival areas.

The problem caused airport officials to issue a ground stop order early Tuesday. The order prevents new flights from arriving. The ground stop was lifted just after 10 a.m.

Airport officials blame Tuesday's shutdown on a domino effect of severe weather in the United States and Canada.

Plus double-digit below-zero temperatures led to frozen equipment and staff claiming it was just too cold to work outside.

The airport authority issued a message on Twitter just after 5:30 a.m. Wednesday, warning passengers there could be a "slow start up" on Wednesday.

As of 6 a.m. ET Wednesday, the GTAA website reported that about 400 flights operating out of Pearson had been cancelled. About 20 per cent of scheduled departures had also been cancelled.

Passengers turn to ground transportation

On Tuesday evening, some passengers unable to book new flights were arranging ground transportation to other airports, where they have a better chance of catching a flight.

"We are thinking of renting a car and driving back to Halifax," frustrated passenger Fernando Salazar told CBC News. "We can't get a flight until Friday."

Photos showed unclaimed passenger luggage clogging up floor space near carousels.

One man who spoke to CBC News found his bag among the thousands piled on the floor.

"I decided to take one last look. I got lucky," he said. "Someone could easily have nabbed it."

Passengers are encouraged to check their flight status before heading to the airport.

Loading Slideshow...
  • Looks pretty! I mean the Logo on truck!!! lol

    <a href="http://www.huffingtonpost.com/social/nmedeiros"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/nmedeiros">nmedeiros</a>:<br />

  • All signs point to ice

    <a href="http://www.huffingtonpost.com/social/onthewing"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/591020830/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/onthewing">onthewing</a>:<br />Road sign fringed with ice in Brampton during the ice storm that hit southern Ontario Dec 22 2013

  • B&W ice branches

    <a href="http://www.huffingtonpost.com/social/IamSteele"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/740788092/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/IamSteele">IamSteele</a>:<br />Closeup on the first night. B&W in the Leeside neighborhood of Toronto.

  • Iced Line

    <a href="http://www.huffingtonpost.com/social/onthewing"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/591020830/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/onthewing">onthewing</a>:<br />Electrical line drooping across a neighbors driveway in Brampton during the Dec 22 2013 ice storm that hit southern Ont.

  • Apple tree branch

    Toothpick size branch

  • ice Storm

    <a href="http://www.huffingtonpost.com/social/Ron_Linda"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/616822574/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Ron_Linda">Ron Linda</a>:<br />The big one in Quispamsis, N.B.

  • Eastborne Park

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />

  • Standing Strong

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />Maple Leaf in ice

  • Iced Cherry

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />Frozen Cherries

  • Eastbourne Park, Brampton, ON

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />Not a tree spared!

  • Frozen In Time, Brampton, ON

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />

  • Eastbourne Park, Brampton, ON

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />Nite Shot

  • Ice Flowers ~ Brampton, ON

    <a href="http://www.huffingtonpost.com/social/Derek_J_Sowa"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/803865400/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Derek_J_Sowa">Derek J Sowa</a>:<br />

  • Crews clear branches snagged on power lines on a closed road in Brampton, Ont., Monday, December 23, 2013. Hydro companies in the Greater Toronto Area — which appeared to be the hardest hit by the weather system — warned some residents to brace for the possibility of being without power until Boxing Day or later.

  • An arborist cuts a tree branch dangling from a power line in Brampton, Ont., Monday, December 23, 2013. Hydro companies in the Greater Toronto Area — which appeared to be the hardest hit by the weather system — warned some residents to brace for the possibility of being without power until Boxing Day or later.

  • A pedestrian walks down a street still closed due to downed power lines and trees in Brampton, Ont., Monday, December 23, 2013. Hydro companies in the Greater Toronto Area — which appeared to be the hardest hit by the weather system — warned some residents to brace for the possibility of being without power until Boxing Day or later.

  • Peel Region employee Dwayne Berrigan cuts fallen limbs from iced trees in Brampton,Ont., Monday, December 23, 2013. Hydro companies in the Greater Toronto Area, which appeared to be the hardest hit by the weather system, warned some residents to brace for the possibility of being without power until Boxing Day or later.

  • Travelers line up after dozens of flights were canceled or delayed by Sunday's ice storm at Pearson International Airport in Toronto, Monday, Dec. 23, 2013.

  • Passengers sleep on the floor in the check-in line as dozens of flights were canceled or delayed by Sunday's ice storm, at Pearson International Airport in Toronto, Monday, Dec. 23, 2013.

  • Got Game

    <a href="http://www.huffingtonpost.com/social/Phil_Vriend"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/1568910464/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/Phil_Vriend">Phil Vriend</a>:<br />The dolls on display at my neighbour's house also took a hit in the ice storm.

  • Workers from Stacey Electric, a Toronto Hydro subcontractor, work to repair downed power lines around Victoria Park and Denton Avenues in Scarborough on Dec. 23 after a severe ice storm hit Toronto.

  • A vehicle damaged by fallen tree branches is shown in the High Park area of Toronto on Dec. 23. A steady dose of freezing rain across parts of Eastern Canada turned roads and sidewalks into skating rinks Sunday, cut power to hundreds of thousands of people, and played havoc with holiday plans at one of the busiest travel times of the year.

  • Fallen tree limbs are stacked up in the Urban Forestry Yard in Toronto on Dec.23. A steady dose of freezing rain across parts of Eastern Canada turned roads and sidewalks into skating rinks Sunday, cut power to hundreds of thousands of people, and played havoc with holiday plans at one of the busiest travel times of the year.

  • It was his time. We all have to go some time.

    <a href="http://www.huffingtonpost.com/social/Darryl_Nielsen"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/Darryl_Nielsen">Darryl Nielsen</a>:<br />It was his time. We all have to go some time.

  • The icy hedge

    <a href="http://www.huffingtonpost.com/social/sunil_T"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100001296030346/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/sunil_T">sunil T</a>:<br />An icy hedge in our neighborhood in Don Mills this morning.

  • A pedestrian walks under a tree blocking Wellesley Street East following an ice storm in Toronto on Monday, Dec. 23, 2013.

  • Power lines dangle on Sackville Street following an ice storm in Toronto on Monday, Dec. 23, 2013.

  • A man pushes a stroller through an ice-covered street in Toronto, Sunday, Dec. 22, 2013, after a storm passed through the area.

  • Ice coats tree branches as a man walks on the sidewalk in Toronto , Sunday, Dec. 22, 2013, after an ice storm passed through the area.

  • People clear the sidewalks on a closed off street in Toronto after an ice storm knocked down trees and power lines in much of the city on Sunday, Dec. 22, 2013.

  • John Szücs scrapes ice off his car near Dufferin Grove Park in Toronto on Sunday, Dec. 22, 2013, following ice storm.

  • Icicles hang from a downed power line on a residential street in Toronto as over 250,000 people face up to 72 hours without electricity after a storm brought heavy ice rain, on Sunday, December 22, 2013.

  • A man steps over downed power line near Dufferin Grove Park in Toronto on Sunday, Dec. 22, 2013 following an ice storm.

  • Our tree in Brampton

    <a href="http://www.huffingtonpost.com/social/IdentityPollution"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100003975728308/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/IdentityPollution">IdentityPollution</a>:<br />The ice storm tore our tree right in half.

  • Brampton

    <a href="http://www.huffingtonpost.com/social/IdentityPollution"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/100003975728308/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/IdentityPollution">IdentityPollution</a>:<br />Our street got hit hard

  • Kitchener

    <a href="http://www.huffingtonpost.com/social/iiabbieii"><img style="float:left;padding-right:6px !important;" src="http://s.huffpost.com/images/profile/user_placeholder.gif" /></a><a href="http://www.huffingtonpost.com/social/iiabbieii">iiabbieii</a>:<br />Our tree sure took a beating

  • @scubafantoo

    @scubafantoo: <a href="https://twitter.com/scubafantoo/status/414775553385050112" target="_blank">#ONSTORM @StormhunterTWN @StormhunterTWN @vaughanweather @JdeQuebec Brampton, Ont! pic.twitter.com/XTHTnPjh1Z</a>

  • Lending A Helping Hand

    <a href="http://www.huffingtonpost.com/social/fitcheerldr"><img style="float:left;padding-right:6px !important;" src="http://graph.facebook.com/775930130/picture?type=square" /></a><a href="http://www.huffingtonpost.com/social/fitcheerldr">fitcheerldr</a>:<br />The neighbourhood coming together to help clean up after the ice storm of 2013.

  • @LoveRadollCats

    @LoveRadollCats: <a href="https://twitter.com/LoveRadollCats/status/414808493439188992/photo/1" target="_blank">#icestorm2013 Kitchener Ontario pic.twitter.com/nAxYS8VEJ9</a>

  • @ar09

    @ar09: <a href="https://twitter.com/ar09/status/414803999263428609/photo/1" target="_blank">tree down in #icestorm2013 #darkTO #680storm #icestorm24 pic.twitter.com/zWV4wFRB9e</a>

  • ‏@elanacamille

  • ‏@fitcheerldr

    ‏@fitcheerldr: <a href="https://twitter.com/fitcheerldr/status/414795586630467585/photo/1" target="_blank">Here's a pic of our neighbourhood working together to clear the downed trees. pic.twitter.com/63qWGAVyTB</a>

  • @diego153

  • @MattBellissimo

    @MattBellissimo: <a href="https://twitter.com/MattBellissimo/status/414784624125308929/photo/1" target="_blank">Normally I'd blame lightning for something like this... pic.twitter.com/P3wX5lVUe2</a>

  • @randy_mcneil

  • Don Mills

  • Don Mills

  • Don Mills

  • @canuck10001

  • @cylonchloe

  • @cylonchloe